arch/arm/mach-kirkwood/netspace_v2-setup.c

   1 /*
   2  * arch/arm/mach-kirkwood/netspace_v2-setup.c
   3  *
   4  * LaCie Network Space v2 board setup
   5  *
   6  * Copyright (C) 2009 Simon Guinot <sguinot@lacie.com>
   7  * Copyright (C) 2009 BenoÃ®t Canet <benoit.canet@gmail.com>
   8  *
   9  * This program is free software; you can redistribute it and/or modify
  10  * it under the terms of the GNU General Public License as published by
  11  * the Free Software Foundation; either version 2 of the License, or
  12  * (at your option) any later version.
  13  *
  14  * This program is distributed in the hope that it will be useful,
  15  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  16  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  17  * GNU General Public License for more details.
  18  *
  19  * You should have received a copy of the GNU General Public License
  20  * along with this program; if not, write to the Free Software
  21  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  22  */
  23
  24 #include <linux/kernel.h>
  25 #include <linux/init.h>
  26 #include <linux/platform_device.h>
  27 #include <linux/mtd/physmap.h>
  28 #include <linux/spi/flash.h>
  29 #include <linux/spi/spi.h>
  30 #include <linux/ata_platform.h>
  31 #include <linux/mv643xx_eth.h>
  32 #include <linux/i2c.h>
  33 #include <linux/i2c/at24.h>
  34 #include <linux/input.h>
  35 #include <linux/gpio.h>
  36 #include <linux/gpio_keys.h>
  37 #include <linux/leds.h>
  38 #include <asm/mach-types.h>
  39 #include <asm/mach/arch.h>
  40 #include <asm/mach/time.h>
  41 #include <mach/kirkwood.h>
  42 #include <plat/time.h>
  43 #include "common.h"
  44 #include "mpp.h"
  45
  46 /*****************************************************************************
  47  * 512KB SPI Flash on Boot Device (MACRONIX MX25L4005)
  48  ****************************************************************************/
  49
  50 static struct mtd_partition netspace_v2_flash_parts[] = {
  51         {
  52                 .name = "u-boot",
  53                 .size = MTDPART_SIZ_FULL,
  54                 .offset = 0,
  55                 .mask_flags = MTD_WRITEABLE, /* force read-only */
  56         },
  57 };
  58
  59 static const struct flash_platform_data netspace_v2_flash = {
  60         .type           = "mx25l4005a",
  61         .name           = "spi_flash",
  62         .parts          = netspace_v2_flash_parts,
  63         .nr_parts       = ARRAY_SIZE(netspace_v2_flash_parts),
  64 };
  65
  66 static struct spi_board_info __initdata netspace_v2_spi_slave_info[] = {
  67         {
  68                 .modalias       = "m25p80",
  69                 .platform_data  = &netspace_v2_flash,
  70                 .irq            = -1,
  71                 .max_speed_hz   = 20000000,
  72                 .bus_num        = 0,
  73                 .chip_select    = 0,
  74         },
  75 };
  76
  77 /*****************************************************************************
  78  * Ethernet
  79  ****************************************************************************/
  80
  81 static struct mv643xx_eth_platform_data netspace_v2_ge00_data = {
  82         .phy_addr       = MV643XX_ETH_PHY_ADDR(8),
  83 };
  84
  85 /*****************************************************************************
  86  * I2C devices
  87  ****************************************************************************/
  88
  89 static struct at24_platform_data at24c04 = {
  90         .byte_len       = SZ_4K / 8,
  91         .page_size      = 16,
  92 };
  93
  94 /*
  95  * i2c addr | chip         | description
  96  * 0x50     | HT24LC04     | eeprom (512B)
  97  */
  98
  99 static struct i2c_board_info __initdata netspace_v2_i2c_info[] = {
 100         {
 101                 I2C_BOARD_INFO("24c04", 0x50),
 102                 .platform_data  = &at24c04,
 103         }
 104 };
 105
 106 /*****************************************************************************
 107  * SATA
 108  ****************************************************************************/
 109
 110 static struct mv_sata_platform_data netspace_v2_sata_data = {
 111         .n_ports        = 2,
 112 };
 113
 114 #define NETSPACE_V2_GPIO_SATA0_POWER    16
 115 #define NETSPACE_V2_GPIO_SATA1_POWER    17
 116
 117 static void __init netspace_v2_sata_power_init(void)
 118 {
 119         int err;
 120
 121         err = gpio_request(NETSPACE_V2_GPIO_SATA0_POWER, "SATA0 power");
 122         if (err == 0) {
 123                 err = gpio_direction_output(NETSPACE_V2_GPIO_SATA0_POWER, 1);
 124                 if (err)
 125                         gpio_free(NETSPACE_V2_GPIO_SATA0_POWER);
 126         }
 127         if (err)
 128                 pr_err("netspace_v2: failed to setup SATA0 power\n");
 129 }
 130
 131 /*****************************************************************************
 132  * GPIO keys
 133  ****************************************************************************/
 134
 135 #define NETSPACE_V2_PUSH_BUTTON         32
 136
 137 static struct gpio_keys_button netspace_v2_buttons[] = {
 138         [0] = {
 139                 .code           = KEY_POWER,
 140                 .gpio           = NETSPACE_V2_PUSH_BUTTON,
 141                 .desc           = "Power push button",
 142                 .active_low     = 0,
 143         },
 144 };
 145
 146 static struct gpio_keys_platform_data netspace_v2_button_data = {
 147         .buttons        = netspace_v2_buttons,
 148         .nbuttons       = ARRAY_SIZE(netspace_v2_buttons),
 149 };
 150
 151 static struct platform_device netspace_v2_gpio_buttons = {
 152         .name           = "gpio-keys",
 153         .id             = -1,
 154         .dev            = {
 155                 .platform_data  = &netspace_v2_button_data,
 156         },
 157 };
 158
 159 /*****************************************************************************
 160  * GPIO LEDs
 161  ****************************************************************************/
 162
 163 /*
 164  * The blue front LED is wired to a CPLD and can blink in relation with the
 165  * SATA activity.
 166  *
 167  * The following array detail the different LED registers and the combination
 168  * of their possible values:
 169  *
 170  *  cmd_led   |  slow_led  | /SATA active | LED state
 171  *            |            |              |
 172  *     1      |     0      |      x       |  off
 173  *     -      |     1      |      x       |  on
 174  *     0      |     0      |      1       |  on
 175  *     0      |     0      |      0       |  blink (rate 300ms)
 176  */
 177
 178 #define NETSPACE_V2_GPIO_RED_LED        12
 179 #define NETSPACE_V2_GPIO_BLUE_LED_SLOW  29
 180 #define NETSPACE_V2_GPIO_BLUE_LED_CMD   30
 181
 182
 183 static struct gpio_led netspace_v2_gpio_led_pins[] = {
 184         {
 185                 .name                   = "ns_v2:blue:sata",
 186                 .default_trigger        = "default-on",
 187                 .gpio                   = NETSPACE_V2_GPIO_BLUE_LED_CMD,
 188                 .active_low             = 1,
 189         },
 190         {
 191                 .name                   = "ns_v2:red:fail",
 192                 .gpio                   = NETSPACE_V2_GPIO_RED_LED,
 193         },
 194 };
 195
 196 static struct gpio_led_platform_data netspace_v2_gpio_leds_data = {
 197         .num_leds       = ARRAY_SIZE(netspace_v2_gpio_led_pins),
 198         .leds           = netspace_v2_gpio_led_pins,
 199 };
 200
 201 static struct platform_device netspace_v2_gpio_leds = {
 202         .name           = "leds-gpio",
 203         .id             = -1,
 204         .dev            = {
 205                 .platform_data  = &netspace_v2_gpio_leds_data,
 206         },
 207 };
 208
 209 static void __init netspace_v2_gpio_leds_init(void)
 210 {
 211         int err;
 212
 213         /* Configure register slow_led to allow SATA activity LED blinking */
 214         err = gpio_request(NETSPACE_V2_GPIO_BLUE_LED_SLOW, "blue LED slow");
 215         if (err == 0) {
 216                 err = gpio_direction_output(NETSPACE_V2_GPIO_BLUE_LED_SLOW, 0);
 217                 if (err)
 218                         gpio_free(NETSPACE_V2_GPIO_BLUE_LED_SLOW);
 219         }
 220         if (err)
 221                 pr_err("netspace_v2: failed to configure blue LED slow GPIO\n");
 222
 223         platform_device_register(&netspace_v2_gpio_leds);
 224 }
 225
 226 /*****************************************************************************
 227  * Timer
 228  ****************************************************************************/
 229
 230 static void netspace_v2_timer_init(void)
 231 {
 232         kirkwood_tclk = 166666667;
 233         orion_time_init(IRQ_KIRKWOOD_BRIDGE, kirkwood_tclk);
 234 }
 235
 236 struct sys_timer netspace_v2_timer = {
 237         .init = netspace_v2_timer_init,
 238 };
 239
 240 /*****************************************************************************
 241  * General Setup
 242  ****************************************************************************/
 243
 244 static unsigned int netspace_v2_mpp_config[] __initdata = {
 245         MPP0_SPI_SCn,
 246         MPP1_SPI_MOSI,
 247         MPP2_SPI_SCK,
 248         MPP3_SPI_MISO,
 249         MPP4_NF_IO6,
 250         MPP5_NF_IO7,
 251         MPP6_SYSRST_OUTn,
 252         MPP8_TW_SDA,
 253         MPP9_TW_SCK,
 254         MPP10_UART0_TXD,
 255         MPP11_UART0_RXD,
 256         MPP12_GPO,              /* Red led */
 257         MPP14_GPIO,             /* USB fuse */
 258         MPP16_GPIO,             /* SATA 0 power */
 259         MPP18_NF_IO0,
 260         MPP19_NF_IO1,
 261         MPP20_SATA1_ACTn,
 262         MPP21_SATA0_ACTn,
 263         MPP24_GPIO,             /* USB mode select */
 264         MPP25_GPIO,             /* Fan rotation fail */
 265         MPP26_GPIO,             /* USB device vbus */
 266         MPP28_GPIO,             /* USB enable host vbus */
 267         MPP29_GPIO,             /* Blue led (slow register) */
 268         MPP30_GPIO,             /* Blue led (command register) */
 269         MPP31_GPIO,             /* Board power off */
 270         MPP32_GPIO,             /* Power button (0 = Released, 1 = Pushed) */
 271         0
 272 };
 273
 274 #define NETSPACE_V2_GPIO_POWER_OFF      31
 275
 276 static void netspace_v2_power_off(void)
 277 {
 278         gpio_set_value(NETSPACE_V2_GPIO_POWER_OFF, 1);
 279 }
 280
 281 static void __init netspace_v2_init(void)
 282 {
 283         /*
 284          * Basic setup. Needs to be called early.
 285          */
 286         kirkwood_init();
 287         kirkwood_mpp_conf(netspace_v2_mpp_config);
 288
 289         netspace_v2_sata_power_init();
 290
 291         kirkwood_ehci_init();
 292         kirkwood_ge00_init(&netspace_v2_ge00_data);
 293         kirkwood_sata_init(&netspace_v2_sata_data);
 294         kirkwood_uart0_init();
 295         spi_register_board_info(netspace_v2_spi_slave_info,
 296                                 ARRAY_SIZE(netspace_v2_spi_slave_info));
 297         kirkwood_spi_init();
 298         kirkwood_i2c_init();
 299         i2c_register_board_info(0, netspace_v2_i2c_info,
 300                                 ARRAY_SIZE(netspace_v2_i2c_info));
 301
 302         netspace_v2_gpio_leds_init();
 303         platform_device_register(&netspace_v2_gpio_buttons);
 304
 305         if (gpio_request(NETSPACE_V2_GPIO_POWER_OFF, "power-off") == 0 &&
 306             gpio_direction_output(NETSPACE_V2_GPIO_POWER_OFF, 0) == 0)
 307                 pm_power_off = netspace_v2_power_off;
 308         else
 309                 pr_err("netspace_v2: failed to configure power-off GPIO\n");
 310 }
 311
 312 #ifdef CONFIG_MACH_NETSPACE_V2
 313 MACHINE_START(NETSPACE_V2, "LaCie Network Space v2")
 314         .phys_io        = KIRKWOOD_REGS_PHYS_BASE,
 315         .io_pg_offst    = ((KIRKWOOD_REGS_VIRT_BASE) >> 18) & 0xfffc,
 316         .boot_params    = 0x00000100,
 317         .init_machine   = netspace_v2_init,
 318         .map_io         = kirkwood_map_io,
 319         .init_irq       = kirkwood_init_irq,
 320         .timer          = &netspace_v2_timer,
 321 MACHINE_END
 322 #endif
 323
 324 #ifdef CONFIG_MACH_INETSPACE_V2
 325 MACHINE_START(INETSPACE_V2, "LaCie Internet Space v2")
 326         .phys_io        = KIRKWOOD_REGS_PHYS_BASE,
 327         .io_pg_offst    = ((KIRKWOOD_REGS_VIRT_BASE) >> 18) & 0xfffc,
 328         .boot_params    = 0x00000100,
 329         .init_machine   = netspace_v2_init,
 330         .map_io         = kirkwood_map_io,
 331         .init_irq       = kirkwood_init_irq,
 332         .timer          = &netspace_v2_timer,
 333 MACHINE_END
 334 #endif